Struct Discard

pub struct Discard;

Drain discarding everything

/dev/null of Drains

Trait Implementations

impl Clone for Discard

fn clone(&self) -> Discard

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Discard

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Drain for Discard

type Ok = ()

Type returned by this drain

type Err = NeverStruct

Type of potential errors that can be returned by this Drain

fn log(&self, _: &Record<'_>, _: &OwnedKVList) -> Result<(), Never>

Handle one logging statement (Record)

fn is_enabled(&self, _1: Level) -> bool

Avoid: Check if messages at the specified log level are maybe enabled for this logger.

fn is_critical_enabled(&self) -> bool

Avoid: See is_enabled

fn is_error_enabled(&self) -> bool

Avoid: See is_enabled

fn is_warning_enabled(&self) -> bool

Avoid: See is_enabled

fn is_info_enabled(&self) -> bool

Avoid: See is_enabled

fn is_debug_enabled(&self) -> bool

Avoid: See is_enabled

fn is_trace_enabled(&self) -> bool

Avoid: See is_enabled

fn map<F, R>(self, f: F) -> R

where Self: Sized, F: FnOnce(Self) -> R,

Pass Drain through a closure, eg. to wrap into another Drain.

fn filter<F>(self, f: F) -> Filter<Self, F>

where Self: Sized, F: FilterFn,

Filter logging records passed to Drain

fn filter_level(self, level: Level) -> LevelFilter<Self>

where Self: Sized,

Filter logging records passed to Drain (by level)

fn map_err<F, E>(self, f: F) -> MapError<Self, E>

where Self: Sized, F: MapErrFn<Self::Err, E>,

Map logging errors returned by this drain

fn ignore_res(self) -> IgnoreResult<Self>

where Self: Sized,

Ignore results returned by this drain

fn fuse(self) -> Fuse<Self>

where Self::Err: Debug, Self: Sized,

Make Self panic when returning any errors

impl Copy for Discard